| 斜拉索张力优化研究 |
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| 引用本文： | 朱敏,;李衍赫.斜拉索张力优化研究[J].石家庄铁道学院学报,2014(3):12-17. |
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| 作者姓名： | 朱敏 ;李衍赫 |
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| 作者单位： | [1]中铁工程设计咨询集团有限公司,北京100055; [2]浙江大学建筑工程学院,浙江杭州310058 |
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| 摘 要： | 合理确定斜拉索的预张力是斜拉空间网格结构成败的关键，提出一种适用于半刚性结构的静力平衡法线性迭代优化方法。通过对灵武体育中心体育场屋盖斜拉索张力优化分析，获得｛N3｝＝（1＋0．3） N为优化预张力，结构最大竖向位移为跨度的1/718，各杆件应力/强度比基本在0．8以内。
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| 关 键 词： | 体育场屋盖 斜拉索 预张力 优化 |
Research on Optimization of Stay Cable Tension |
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| Institution: | Zhu min, Li Yanhe (1. China Railway Engineering Consulting Group Co. , Ltd, Beijing 100055, China; 2. Institute of Structural Engineering, Zhejiang Unverisity, Hangzhou310058, China) |
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| Abstract: | Reasonable determination of the pre-tension in cables is the key point to the success of cable-stayed spatial grid structure .This paper presents a linear iterative optimization method of static equilibrium meth-od suitable for semi-rigid structure .By analyzing and optimizing the tension in the roof cables of Lingwu Sports Center Stadium, this paper obtains the conclusion that {N3} =（1＋0.3）N is the optimized pretension of the ca-bles , and under this circumstance , the maximum vertical displacement of the structure is 1/718 of the span and the stress /strength of each rod is less than 0.8. |
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| Keywords: | stadium roof cable-stayed pretension optimization |
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